Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/2/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 04/04/2025 | 06:45:16 | 70.13, 74.99 | 64.28 | 04/04/2025 | 06:45:47 | 70.11, 74.93 | 64.25 | 3.23 | 31 |
| 2 | 04/04/2025 | 07:35:59 | -70.07,-117.60 | 115.80 | 04/04/2025 | 07:35:16 | -70.05,-117.53 | 115.82 | 3.65 | 43 |
| 3 | 04/06/2025 | 22:11:30 | -70.55, 22.81 | 116.30 | 04/06/2025 | 22:12:41 | -70.45, 23.66 | 116.43 | 33.35 | 71 |
| 4 | 04/06/2025 | 23:02:07 | 70.10,-169.18 | 63.22 | 04/06/2025 | 23:02:12 | 70.13,-169.17 | 63.25 | 3.03 | 5 |
| 5 | 04/06/2025 | 23:52:50 | -70.03, -1.76 | 116.86 | 04/06/2025 | 23:51:42 | -70.01, -1.69 | 116.88 | 3.34 | 68 |
| 6 | 04/09/2025 | 14:28:15 | -70.21, 139.13 | 117.66 | 04/09/2025 | 14:29:10 | -70.21, 139.20 | 117.67 | 2.37 | 55 |
| 7 | 04/09/2025 | 15:18:58 | 70.08, -53.36 | 62.19 | 04/09/2025 | 15:18:37 | 70.10, -53.32 | 62.21 | 2.59 | 21 |
| 8 | 04/09/2025 | 16:09:27 | -69.26, 115.15 | 118.66 | 04/09/2025 | 16:08:19 | -69.32, 113.26 | 118.55 | 74.48 | 68 |
| 9 | 04/12/2025 | 06:45:04 | -70.14,-104.98 | 118.72 | 04/12/2025 | 06:45:34 | -70.13,-105.01 | 118.73 | 1.28 | 30 |
| 10 | 04/12/2025 | 07:35:47 | 70.01, 62.53 | 61.14 | 04/12/2025 | 07:35:01 | 70.02, 62.47 | 61.15 | 2.24 | 46 |
| 11 | 04/14/2025 | 22:11:15 | 70.37,-156.87 | 60.57 | 04/14/2025 | 22:12:26 | 70.29,-156.52 | 60.47 | 15.72 | 71 |
| 12 | 04/14/2025 | 23:01:55 | -70.13, 10.82 | 119.70 | 04/14/2025 | 23:01:57 | -70.13, 10.88 | 119.71 | 2.58 | 2 |
| 13 | 04/14/2025 | 23:52:37 | 69.96, 178.39 | 60.11 | 04/14/2025 | 23:51:25 | 69.96, 178.29 | 60.12 | 4.13 | 72 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/2/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/02/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9